Commercial &#34;s&#34; slip forming machine



May 29, 1956 s. I APIDUS COMMERCIAL "s" SLIP FCRMINC MACHINE 4 Sheets-Sheet l Filed Feb. 18. 1953 May 29, 1956 s. LAPlDus 2,747,641

COMMERCIAL "S" SLIP FORMING MACHINE Filed Feb. 18, 1953 4 Sheets-Sheet 2 INVENTOR. SOLOMON LAPIDUS BY M a MMM/5) May 29, 1956 s. LAPlDus 2,747,641

COMMERCIAL "S" SLIP FORMIMG MACHINE Filed Feb. 18, 1953 4 Sheets-Sheet 5 INVENTOR SOLOMON LAPIDUS i l 52 i May 29, 1956 s. LAPIDUs 2,747,641

COMMERCIAL "s" SLIP FCRMINC MACHINE Filed Feb. 18. 1953 4 Sheets-Sheet 4 ZT/ x51 i. --if-l-if' f INVENTUM j noLoMoN LAPIDUS /A l BY 46 4Z wm United States Patent O CQMMERCIAL S SLIP FORMING MACHINE Solomon Lapdus, Brooklyn, N. Y. Application February 18, 1953, Serial No. 337,477 9 Claims. (Cl. 153-28) This invention relates to new and useful improvements in forming machines.

More particularly, the present invention proposes the construction of an improved forming machine having dies which will press sheet metal and similar material into any desired shape progressively and continuously.

Another object of the present; invention proposes constructing a forming machine which can form sheet metal and similar material in commercial S slips, simple at slips, bar slips and like shapes.

Still further, the present invention proposes arranging the dies and feeding rollers in the forming' machine so that the dies at their point of maximum squeeze are moving in the direction of feed at the same speed as the sheet metal, or other material to be formed, is being fed through the machine by the feeding rollers.

As a further object, the present invention proposes arranging mating dies in two sections of the machine and operable 180 degrees out of phase so that any uubalanced forces causing vibration are minimized and internally counterbalanced.

The present invention further proposes a novel arrangement of a series of feed rollers and die forms actuatedv by eccentric drive rolls, the feed rolls being geared to. the eccentric drive rolls to synchronize their speeds and produce smooth, continuous feeding and forming.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

ln the accompanying drawings forming a material part of this` disclosure:

Fig. l is an elevational view showing one side of a forming machine constructed and arranged in accordance with the present invention.

Eig. 2, is a view similar to `Fig. 1 but showing the other side of the machine, the rear end of the machine being broken away.

Fig, 3v is atop plan View of the machine.

Fig. 4 is a sectional View taken on line 4-4- of Fig. 1.

Fig. 5 is a sectional view taken on line 5,-5 of Fig. l.

Fig'. 6v is a fragmentary sectional view of the machine further showing details of construction.

Fig. 7 is a sectional view taken on line 7-7 of Fig. 5.

Fig'. 8 is a sectional View taken on line 8 -.S of Fig. 3.

Fig'. 9 is a perspective View of one of the die carriages of themachine.

Referring more particularly to the drawings, the forming machine illustrated in the several figures-has a frame 'havingy two spaced Vertical side members; 16.l and 17. A vertical support member 18 having a horizontal Upper portionl 19. is fixed, asby welding, to the sidel member 1-7 at about the center of themacbine.

Between the front end of the machine and support member 18, vertically aligned sets of eccentric-drive rolls 20,.. 2.1., and 22.. 23 are retatablv mcunted on the side @amers 16 and. i7'. The unser. eccentric drive relis..

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20 and 22 are spaced apart and the lower drive rolls 21 and 23 are similarly spaced. Eccentrics drive rolls 20, 2i, 22 and 23 have shafts 24, 25, 26 and 27 frictionally secured and extending through them respectively. The shafts 24, 25, 26 and 27 are jourualled in bearings, such as bearings 28 shown in Fig. 6, in the side members 16 and 17.

Eccentric drive gears 29, 30, 31 and 32 are secured to the shafts 24, 25, 26 and l27, respectively, ou the outside of side member 17. Idler gear 33 mounted on stub shaft 34 journalled in side member 17 meshes with and connects eccentric drive gears 29 and 31, and a similar idler gear 35 on stub shaft 36 journalled in side member 17 meshes with and connects eccentric drive gears 30 and 32.

Eccentric drive rolls 20 and 22 movably support an upper die carriage 37 removably fixed to which is an upper die 38. Eccentric drive rolls 21 and 23 similarly Vsupport a lower die carriage 39 removably xed to which is a lower die 40 mating with the upper die 38.

Similarly, between the rear end of the machine and centrally disposed support member 18, vertically aligned sets of eccentric drive rolls 41, 4 2 and 43, 44 are rotatablyV mounted on the side members 16 and 17. The upper eccentric drive rolls 41 and 43 are spaced apart as are the lower eccentric drive rolls 42 and 44. Drive rolls 41, 42, 43 and 44 have fixed shafts 45, 46, 47 and 48, respectively. These shafts are journalled in bearings, such as bearings 28 shown in Fig. 6, in the side members 16 and 17 of the machine.

Eccentric drive gears 49, 5i), 51 and 52 are secured to shafts 45, 46, 47 and 48, respectively, on the outside of side member 17. Idler gear 53, mounted on stub shaft 54 journalled in side member 17 meshes with and connects eccentric drive gears 49 and 51 and a similar idler gear 55 on stub shaft 56 journalled in side member 17 meshes with and connects eccentricl drive gears 50 and 52.

Eccentricl drive rollsk 41 and 43 movably supportV an upper die carriagey 57 removably xed to which, as by screws 58, isV an upper die 59. Eccentric drive rolls 42 and 44 similarly support a lower die carriage 6i) removably tixed to which, as by bolts 61, is a lower die 62 mat'- ing with the upper die 59.

Each of the eccentric drive rolls, 20 21, 22, 23, 41, 42, 43 and 40 are similarly constructed, iit through'openings 63 (see Fig. 9i) in their respective die carriages', and have bearings 64 (see Fig. 6) to t such openings. The eccentric drive rolls are shaped to move, in reciprocating movement, the upper audy lower die carriages and dies of each set or pair of dit-:s` in a circular path andbring the mating dies together while they are travelling inA such path.

The upper and lower diesV 38,` 4i), 59 and 60' do not extend entirely across the machine between side plates or members 16 and 17 but are spaced back from side plate 16. A plurality of spaced' sets of feed rollers. 65, and 66 are rotatably mounted on the side member 16 andl disposed adjacent the upper and lower dies and between the die carriages. Feed rollers: 65 and 66 are. mounted on axles or shaftsV 67 and 68 journalled in the sidevmembers- I6; of the machine; Feed roller drive gears' 69'an'd 7).- are also secured to the shafts 67 and 63.

A pair of mating initial crimping rolls 71 and 72 (see Fig. l),` vertically aligned, are rotatably mounted on the' side. members. 16 and` 17 in front' of the dies atthe' front or feed end ofthe machine. Top roll 71' and bottom roll 72 are-fixed to shafts 7:3 and 74 (see also Fig. 3'), respectively, the endsof which are journalled in the sidemem b ers I6 aud 1.7; AlsoY secured to shaftsv 73.' and 74' out'-V side. side member 161 are drive gears 75 and 76,V respectively;

A pair of mating vertically'algnedinal formingroll'ersf 77 and 78 are rotatably mounted between the side members 16 and 17 beyond the dies at the rear or output end of the machine.V The upper roller 77 and the lower 'roller 78 areY fixed to shafts 79 and 80, respectively, whichv Tubular vertically aligned hollow shafts 83 and'84 ro- Vtatably extend through and are journalled in side mem- Vbers 16 and 17 at the center of the machine (see Fig. 7).

Keyed to the end of lower shaft 83 which extends outside Y side member 17 is a gear 85 which meshes with a gear 86 keyed to a rotatable stub shaft 87 extending between and journalled in side member 17 and vertical support member Keyed to the same end of the lower tubular shaft 83 between gear 85 and side member 17 is a large main drive gear 88 meshing with a similar gear 89 keyed to the end of the upper tubular shaft 84 above it. The upper main drive gear 89 meshes also with eccentric'drive gears 29 and 49 and the lower main drive gear 88 meshes also with eccentric drive gears 30 and 50 to form a train of gears to drive the die carriages and dies. The gears and Y carriages are arranged to operate the dies of the two y .in the vertical support member 18 and the like end of shaft 91 is similarly journalled.

Adjacent vertical support member 17, a main drive gear 92 is keyed Vto shaft 90 for rotating the shaft. Gear V92 mesheswith and drives a similar gear 93' keyed to shaft 91. Y

On the other end of shaft 90, outside side member 1.6

ofthe machine, a gear 94 is fixed. Gear 94 meshes with the Vlower feed roller drive gears 70 which are all in mesh on either side of gear 94 forming a lower gear train which includes the lower driveV gears 76 and 82 of the initial crimping rolls and the final forming roller. l A gear 95 similar to gear 94 is keyed above gear 94 to the end of shaft 91 extending outside of side member 16. Gear 95 meshes with the upper feed roller drive gearsY 69 which are all in mesh on either side of gear 95 forming an upper gear train which includes the upper drive gears 7 5 and 81 of the initial crimping rolls and the nal forming roller. Y

The lower large gear 92 of meshing gears 92 and 93 adjacent the driving side 17 of the machine meshes with Va gear 96 keyed to stub shaft 87 and a pulley 97 completes the drive for the machine.

It will be apparent from the foregoing that all the rolls and rollers will be driven simultaneously vwith the Vtwo pair of dies operating 180 degrees out of phase and each pair of dies moving in the same direction and at the same speed as the feed rollers when they come together.

To operate the machine, an operator faces side member 16 and feeds sheet metal 98 or other material to be formed into the initial crimping rolls 71 and 72 where it is pressed to the shape indicated at 99 in Fig. l. The material is carried without any interruption in its travel by the feed rollers 69 and 70 between the dies 38 and 40 where it is further continuously pressed in passing to the shape indicated at-100 and 101. By this time it has reached the second set of dies 59 and 60 and continues to be pressed as shown at 102, 103 and 104. The feed rolls then continue to carry it to the final forming rollers 77 and 78 which give it the final form or shape desired. Y While I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined inthe appended claims.`

Having thus described my invention, what I claim as new, and desire to secureby United States Letters Patent is:

l. A forming machine comprising aframe having two spaced side members, vertically aligned sets of eccentric drive rolls rotatably mounted on the side members, upper kand Vlower die carriages mounted on said rolls for reciprocating movement toward and away from each other, an upper die fixed to the upper carriage and a lower die fixed to the tower carriage, a plurality of spaced sets of feed rollers rotatably mounted on one of the side members to feed material to be formed between the dies and continuously through the machine, and means to gear the feed rolls to the eccentric drive rolls for continuous and synchronized forming and feeding.

2. A forming machine comprising a frame having two spaced vertical side members, vertically aligned spaced eccentric drive rolls rotatably mounted on the side members, upper and lowerV die carriages mounted on the Y spaced eccentric drive rolls for Veccentric movement toward and away from one another, an upper and lower die fixed to the upper and lower die carriages respectively, a pair of initial crimping rolls rotatably mounted on the side members in front of the dies, a plurality of spaced sets of feed rollers rotatably mounted on the side members between the initial crimping rolls and the dies and beyond the dies to feed material to be formed by the dies between the dies and continuously through'the machine, and means to drive all the rolls and rollers simultaneously and move the dies together to form material between them with the dies moving in the same direction as the material at such time and at the same speed.

3. A forming machine comprising a frame having two spaced vertical side members, vertically alignedrspaced eccentric drive rolls rotatably mounted on the side members, upper and lower die carriages mounted on the n means to drive all the rolls and rollers simultaneouslyspaced eccentric drive rolls ,for eccentric movement toward and away from one another, an upper and lower die fixed to the upper and lower die carriages respectively, a pair of initial crimping rolls rotatably mounted on the side members in front of the dies, a plurality of spaced 'sets of feed rollers rotatably mounted on the side mem-` bers between the initial crimping rolls and the dies and beyond the dies to feed material Vto be formed by the dies betweenthe dies and continuously through the machine, and means to drive all Vtherolls and rollers simultaneously and move the dies together to forrn material between them with the dies moving in the same direction as the material at such time and at the same speed, and a pair of final forming rollers rotatably mounted be tween the side members beyond the dies to complete the i rollers rotatably mounted on the side members between 'Y the initial crimping rolls and the dies and beyond the dies to feed material to be formed by the Vdies between the dies and continuously through the machine, and

and move the dies together to form material between them with the dies moving in the same direction as the material at such time and at the same speed, said eccentric drive rolls each having an eccentrically disposed drive shaft extendingfthrough it, bearings in the side members rotatably to hold the drive shafts.

5. A forming machine comprising a frame having two spaced vertical side members, vertically aligned spaced eccentric drive rolls rotatably mounted on the side members, upper and lower die carriages mounted on the spaced eccentric drive rolls for ecce-'ttric movement toward and away from one another, an upper and lower die fixed to the upper and lower die carriages respectively, a pair of initial crimping rolls rotatably mounted on the side members in front of the dies, a plurality of spaced sets of feed rollers rotatably mounted on the side members between the initial crimping rolls and the dies and beyond the dies to feed material to be formed by the dies between the dies and continuously through the machine, and means to drive all the rolls and rollers simultaneously and move the dies together to form material between them with the dies moving in the same direction as the material at such time and at the same speed, said eccentric drive rolls each having an eccentrically disposed drive shaft extending through it, bearings in the side members rotatably to hold the drive shafts said initial crimping rolls and feed rollers each having stub axles with bearings in the side members rotatably to hold the stub axles.

6. A forming machine comprising a frame having two spaced vertical side members, vertically aligned spaced eccentric drive rolls rotatably mounted on the side members, upper and lower die carriages mounted on the spaced eccentric drive rolls for eccentric movement toward and away from one another, an upper and lower die fixed to the upper and lower die carriages respectively, a pair of initial crimping rolls rotatably mounted on the side members in front of the dies, a plurality of spaced sets of feed rollers rotatably mounted on the side members between the initial crimping rolls and the dies and beyond the dies to feed material to be formed by the dies between the dies and continuously through the machine, and means to drive all the rolls and rollers simultaneously and move the dies together to form material between them with the dies moving in the same direction as the material at such time and at the same speed, said eccentric drive rolls each having an eccentrically disposed drive shaft extending through it, bearings in the side members rotatably to hold the drive shafts, said initial crimping rolls and feed rollers each having stub axles with bearings in the side members rotatably to hold the stub axles, said means to drive the rolls and rollers being a main drive shaft rotatably mounted on the side members with meshing gears on the drive shafts, stub axles and master drive shaft.

7. A forming machine comprising a frame having two spaced side members, a plurality of sets of vertically spaced feed rollers rotatably mounted on the side members to feed material to be formed through the machine, a pair of vertically aligned spaced eccentric drive rolls rotatably mounted on the side members, a second pair of vertically aligned spaced eccentric drive rolls rotatably mounted on the side members and spaced from the rst said pair, upper and lower die carriages mounted on the rolls of each pair of eccentric drive rolls, an upper and lower die removably secured to the upper and lower die carriages of each pair of eccentric drive rolls, and means to drive the feed rollers and the eccentric drive rolls simultaneously and synchronized with each other with the dies of the two pair of dies operating degrees out of phase and travelling in the same direction at the same speed as the material at the time each pair of dies are closed.

8. A forming machine comprising a frame having two spaced side members, two upper die carriages and two lower die carriages, upper and lower dies removably secured to the upper and lower die carriages respectively, two eccentric drive rolls for each die carriage rotatably mounted on the side members to move an upper and lower die carriage toward and away from each other, a plurality of sets of feed rollers rotatably mounted on the side members and disposed to feed material to be formed between the dies and continuously through the machine, and means to drive the rolls and rollers simultaneously and operate the two sets of dies 180 degrees out of phase with the dies moving at the same speed and traveling in the same direction at the time each set of dies are closed.

9. A forming machine comprising a frame having two spaced vertical side members, a main drive shaft rotatably mounted in the side members, a pair of horizontally spaced eccentric drive rolls rotatably mounted on the side members on each side of the main drive shaft, a second pair of horizontally spaced eccentric drive rolls rotatably mounted on the side members under each of the first said pairs, a die carriage suspended between the side members between each pair of horizontally spaced eccentric drive rolls for eccentric movement by said rolls, upper and lower dies removably secured to the die carriages, a plurality of spaced sets of feed rollers rotatably mounted on the side members between the die carriages and to one side of the dies to feed material to be formed through the dies, said main drive being linked to the feed rollers and the eccentric drive rollers for simultaneous operation of the dies on each side of the main drive with the dies on one side operating 180 degrees out of phase with those on the other side but with all dies moving at the same speed and in the same direction when closing as material being fed by the feed rollers through the machine.

References Cited in the le of this patent UNITED STATES PATENTS 1,404,830 Sjobring Jan. 31, 1922 1,656,445 Neuhengen Jan. 17, 1928 1,708,872 Coates Apr. 9, 1929 2,202,889 Bates June 4, 1940 2,405,738 Deltmann Aug. 13, 1946 2,406,808 Conner Sept. 3, 1946 2,473,590 Kellogg June 21, 1949 

